Perforating apparatus



NOV. 19, 1935. c GATE PERFQRATING APPARATUS Filed May 15, i932 6Sheets-Sheet 1 Nov. 19, 1935. JQGATES 2,021,302 PERFORATING APPARATUSFiled May 13, 1932 s Sheets-Sheet 2 Nov. 19, 1935. J, Q GATE 2,021,302

PERFORATING APPARATUS Filed May 15, 1932 6 Shee ts-Sheet 5 4 64 L /390000 00000 O 0 Q 0 0'0 0 O 0 O O NOV. 19, 1935. c GATES 2,021,302

PERFORATING APPARATUS Filed May 13, 1932 6 Sheets$heet 4 #4 MM ATTORNEYNov. 19, 1935. J. c. GATES 2,021,302

PERFORATING APPARATUS Filed May 15, 1932 e Sheets-Sheet 5 Nov. 19, 1935.C GATES 2,021,302

PERFORATING APPARATUS Filed May 13. 1932 6 Sheets-Sheet 6 l I A P z APatented Nov. 19, 1935 UNITED STATES PATENT OFFICE PERFORATING APPARATUSApplication May 13, 1932, Serial No. 611,013

11 Claim.

This invention relates to perforating apparatus, and more particularlyto a manual control device for a pneumatically settable card duplicatingapparatus.

5 It is an object of the present invention to provide a pneumaticallysettable recording apparatus having dual control means.

In accordance with one embodiment of the invention, a perforatingapparatus is provided 10 for making duplicates of a supply of recordcards having information marked therein wherein the information in thecards to be duplicated is set up in a. perforator by directing air underpressure through apertures in the card to be duplicated 15 for actuatingsettable pistons and wherein an auxiliary control is provided wherebythe informatlon in certain of the columns of the cards being duplicatedis rendered ineffective to control the settable pistons and informationis set 20 into the perforators by the operation of manually actuatablekeys.

These and other objects of the invention will be apparent from thefollowing detailed description, when considered in connection with the25 accompanying drawings, wherein Fig. 1 is a side .elevational view ofa record card duplicating apparatus embodying the novel features of theinvention; v

Fig. 2 is an enlarged fragmentary vertical sec- 30 tional view takenalong the line 2-2 of Fig. 1 in the direction of the arrows, parts beingbroken away to show more clearly the details of construction;

Fig. 3 is a fragmentary vertical sectional view 35 taken substantiallyalong the line 3-3 of Fig. 2

in the direction of the arrows;

Figs. 4 and 5 are fragmentary horizontal sectional views taken along thelines 4--4 and 5-5, respectively, of Fig. 3 in the direction of the 40arrows;

Figs. 6 and 7 are fragmentary vertical sectional views taken along thelines 6-6 and 1-1, respectively, of Fig. 3 in the direction of thearrows;

Fig. 8 is a fragmentary plan view of the keys 45 for manuallycontrolling the information marked in cards looking in the direction ofthe arrows 8--8-shown in Fig. 1;-

Fig. 9 is a vertical sectional view taken along the line 9-9 of Fig. 8in the direction of the arrows, and

Fig. 10 is a fragmentary sectional view taken along the line l0-I0 ofFig. 8 in the direction of the arrows.

Referring now to the drawings wherein like 55 reference charactersdesignate the same parts throughout the several views, power for drivingthe various movable parts of the mechanism is supplied from the motor(not shown) through a belt I!) (Figs. 2, 6, and 7) which drives a pulleyII fixed to a sleeve I2. The sleeve I2 is freely rotatable upon a shaft13, suitably supported in a manner to be described hereinafter, beingheld against lateral movement thereon by collars l4 and I5 (Fig. 6)pinned to the shaft and has formed integrally therewith a worm gear 16which meshes with a worm gear 11 fixed to one end of a shaft 18. Mountedupon the other end of the shaft l8 (Fig. 1) is a worm gear 19 which.meshes with a worm gear 20, fixed to a stud shaft 2!, and carrying abeveled'gear 22. Meshing with the beveled gear 22 is a beveled gear 32mounted on one end of a shaft 33 which carries intermediate its ends abeveled gear 34 for driving a beveled gear 35 pinned to a shaft 36. Theshaft 36 carries beveled gears 31, 38, 39 and 40 which mesh with anddrive beveled gears 4|, 42, 43 and 44, mounted on shafts 45, 46, 41 and48, respectively.

The shafts 45, 46, 41 and 48 extend transversely through the machine andare journaled in side plates 49 mounted upon a base 56 and have enlargedportions 66 (Figs. 2 and 3) which serve as lower card feed rollers foradvancing a card to be perforated from a magazine 61 to a hopper 59(Fig. 1). Cooperating with the enlarged portions 63 of the shafts 45,46, 41 and 48 are a plurality of spring pressed upper card feed rollers62 and 63 (Figs. 1, 2 and 3) which are not positively driven and whichare normally urged downwardly into contact with the enlarged portions60. The upper card feed rollers 62 and 63 are of a known type and adetailed description thereof is not believed to be necessary.

Pinned to the upper end of the shaft 33 (Fig. 1) is a beveled gear 64meshing with a beveled gear 65 secured to a shaft 66 suitably journaledon the side plate 49 and carrying beveled gears 61, 68, 69 and 15.Meshing with the beveled gears 61, 68, 69 and 10 are beveled gears ll,12, 13 and 14, respectively, mounted upon shafts 15, 16, 11 and 18,respectively. The shafts 15 and 1B are journaled in the side plates 49and extend through the entire machine, whereas the shafts 16 and 11 arestud shafts journaled in one of the side plates 49. Formed integrallywith the shafts 15 and 18 are a plurality of enlarged portions 90(Fig. 1) which serve as lower card feed rollers for advancing a card tobe perforated from a magazine 9| to ahopper 92 (Fig. 1) and formedintegrally with the shafts 16 and 11 are similar enlarged portions 93which cooperate with the rollers 90 in advancing cards from the magazine9| to the hopper 92.

The shaft 18 carries on its right end (Fig. 2) a beveled gear 94 whichmeshes with a beveled gear 95 mounted upon a shaft 96 journaled. uponthe right hand side-plate 49 (Fig. 2) for driving stud shafts similar tothe stud shafts 16 and 11 which carry card feed rollers 93. Cooperatingwith the enlarged portions 90 and 93 are a plurality of spring pressedupper card feed rollers 91 and 98 (Figs. 1, 2, 3 and 4) similar to theupper card feed rollers 62 and 63.

Cards to be advanced by the card feed rollers from the magazines 6I and9| to the hoppers 59 and 92 are picked up one at a time from the bottomof their respective magazines by card feed knives I09 and H0,respectively, positioned in the bottom of the magazines and connectedtogether by plates III to which are fixed pins H2 extending outwardlyfrom the plates I I I through slots H3 in the side plates 49. The pinsH2 extend into camming slots H4 formed in the arms of a bifurcated leverII5 oscillatable about a shaft I I6 secured to the side plates'49. Ihelower end of the bifurcated lever H5 slotted at H1 to receive a cammingpin H3 mounted upon the end of a reciprocable lever H9 slidable in abracket I20 positioned upon the base 50. The end of the reciprocablelever H9 opposite to the one which holds the camming pin H3 has a rollerI2I positioned thereon and extending into a cam groove I22 formed in acam I23 mounted upon the shaft I3. Upon rotation of the shaft I3 thereciprocable lever II9 will be reciprocated and will cause the card feedknives I09 and H to engage the bottom card of supplies'of cards I35 andI36, respectively, to advance them in their associated card feedrollers, suitable mechanism being provided at I31 and I38 topermit onlyone m each of the supplies I35 and I36. The sh'a I3 is journaled in theside plates 49 and has 'pinned thereto-a driven clutch member I24(Fig'sm, 6 and 7) Cooperating with the driven clutch member I24 is adriving clutch member I25 which is slidable longitudinally of the shaftI3 and which is pro vided with horizontally extending arms I26 which areslidable in apertures I21 in the pulley II. The driving clutch memberI25 rotates with the pulley H and is provided with a circumferentiallyextending groove I26 into which extend the arms of a bifurcated leverI29 (Figs. 3, 6 and '7) pinned to a shaft I30 journaled upon the base 50and normally urged to rotate in a counterclockwise direction (Figs. 2, 6and 7) by a coil spring I3I (Fig. 3), thereby to hold the driving clutchmember I25 out of engagement with the driven clutch member I24. Alsopinned to the shaft I30 is a vertically extending control lever I32(Figs. 2, 3 and 7) which will normally be held in the position shown .inFigs. 2 and 7 by the spring I3I but which may be moved to the right(Figs. 2 and 7) to rock the shaft I30 in a clockwise direction andthrough the bifurcated lever I29 move the driving clutch member I25 intoengagement with the driven clutch member I24. The lever I32 hascooperating therewith a flexible shaft commonly known as a Bowdin" wireI33 for moving it to the right (Fig. 7). The Bowdin" wire I33 isenclosed in a casing I34 secured to a bracket I45 mounted upon the base50 and the Bowdin wire may be operated by a suitable push button (notshown) of a known type conveniently mounted for operation by anoperator. The lever I32, upon being moved to the right (Fig. 7) willengage a latch member I46, pivoted to the side plate 49 at I41 andnormally urged to rotate about its pivot in a counterclockwise directioninto engagement with a stop member I48 by a spring I49. When the leverI32 is rocked to the right (Fig. 7) it will lock the driving clutchmember I25 in engagement with the driven clutch member I24, due to theengagement of the end of the control lever I32 with a stop I50 formed onthe latch member I46, thereby to cause the shaft I3 to rotatecontinuously until the latch member I46 is released from the lever I32.A second Bowdin wire mechanism indicated generally at I5I (Figs. 2, 3and 7) and mounted upon the bracket I45 may be actuated to move thelatch member I46 upwardly out of engagement with the lever I32, therebyto permit the spring I49 to return the lever I32 to its normal positionas shown in Figs. 2 and 7 for moving the driving clutch member I25 outof engagement with the driven clutch member I24.

Each card as it is advanced from the supply of cards I36 passes under apneumatic head I39 (Figs. 1, 2, 3 and 4) which is reciprocably mountedin the side plates 49 and which is reciprocated in timed relation to theadvancement of cards from the magazines to the hoppers. A pair of linksI40 (Figs. 1 and 2) are fixed to the pneumatic head I 39 at I and carryat their lower ends cam rollers I42 engaging in cam grooves I43, formedin cams I44 fixed to the shaft I3. In each revolution of the shaft I3the pneumatic head I 39 will be moved downwardly to engage a cardadvanced thereunder from the magazine 9| and will thereafter be raisedto the position shown in Figs. 2 and 3.

Carried by the pneumatic head I39 is a card stop bracket I56 (Figs. 7and 3) to which there is ailixed a card stop I51 which is adapted uponmovement of the pneumatic head I39 downwardly to move into the path of acard being advanced from the magazine 9i to stop the card in positionunder the head I39. Shortly after the pneumatic head I39 is moveddownwardly to stop a card in position thereunder, the pneumatic headwill engage the card and then a camming pin I58 (Fig. 1) mounted uponone of the cams I44 will engage with and move a valve operating leverI59 in a counterclockwise direction (Fig. 1) to open a valve I60 andpermit air under pressure from a source (not shown) to pass from a pipeI H into a pipe I62 which is interconnected with the pneumatic head I39by a pipe I63 and a flexible connection I64. A blast of air underpressure will thus be delivered through a port I65 (Fig. 3) formed inthe pneumatic head I39 and into the interior of the head. The uppersurface of the head I39 is dome-shaped and extends downwardly to a gridI66 which is scaled thereto and which is provided with 45 columns ofapertures I61, there being 12 apertures in each column. These aperturesI61 are so positioned as to be in direct alignment with every possiblehole position of a statistical card advanced from the supply of cardsI36 when the card is stopped under the pneumatic head I 39, and theblast of air directed from the pipe I6I upon the opening of the vaiveI60 will be directed through the grid and through all of the holes in acard, a duplicate of which is to be made.

Shortly after the opening of the valve I60 due to the engagement of thecamming pin I58 with the valve operating lever I59, the camming pin willengage an upwardly extending arm I68 of a reciprocable lever I69slidably mounted on the base 50 by means of a bracket. I10 and having anarm I1I thereof engaging a downwardly extending portion I12 of the valveactuating lever I59. When the camming pin I58 strikes the arm I68 of thelever I69, it will move the lever. I69 to the left (Fig. 1) thereby torock the valve operating lever I59 in a clockwise direction (Fig. 1) toclose the valve. I60 and shut off the supply of air under pressure fromthe pipe I62.

In direct vertical alignment with the apertures I61 in the grid I66 area plurality of apertures or ports I13 in a grid I14 which communicatewith aplurality of apertures I86 formed in a valve block I81. Positionedfor vertically reciprocable movement in apertures I88 formed in acylinder block I89 are a plurality of pistons I90, and interconnectingthe apertures in the cylinder block and the apertures in the valve blockI 81 are a plurality of pipes I9I through which air may be directed toactuate the pistons I90.

The valve block I81 as shown in Figs. 2 and 3 has slide valves I92slidably mounted therein provided with a plurality of ports I forinterconnecting the apertures I13 with their corresponding apertures I86when the slide valves are in their normal position as shown in Fig. 3.However, the slide valves I92 may, when it is desired to disregard someof the information per-. forated in a card to be duplicated, be moved tothe right (Fig. 3) to move the apertures in the valves out of alignmentwith the apertures I13 and I86. In the embodiment of the inventiondisclosed herein there are provided ten slide valves for controlling thecolumns of perforations associated with'columns 31 to 40 of a 45 columnstatistical card. In a manner to be described hereinafter and inaccordance with the present invention these particular columnsassociated with columns 31 to 40 of the statistical cards beingduplicated maybe controlled to perforate in the duplicate card beingperforated, information not present in the card being duplicated.

The pistons I are normally held in their uppermost position as shown inFig. 3 by coil springs I93 which encircle a portion of the pistons I90and are so positioned as to engage the underside of an enlarged portionI94 of the piston and the upper surface of a guide plate I95. The lowerportions of the pistons I90 are slidable in theguide plate I95 and eachof them is provided with a notch I96 so that when a piston or pistons ina column of pistons is moved downwardly it or they will be locked intheir downward position due to the engagement of the notch I96 with aspring pressed latch plate I91 provided with a plurality of aperturesI98 corresponding in number to the number of pistons. There is providedone latch plate I91 for each column of pistons and these plates arenormally urged to the left (Fig. 3) by contractile springs I99 whichnormally tend to move them into engagement with a stop member 200extending transversely to the direction of movement of the latch platesI91 to prevent them from moving to the left (Fig. 3) beyond apredetermined point where a tapered edge 20I formed on each of thepistons may engage one edge of its associated aperture I 98 to cam thelatch plate I91 to the right (Fig. 3) until the plate engages in thenotches I96. If it is desired to have any column of a duplicatestatistical record card left unperforated despite the fact that therecord being duplicated has perforations in that particular column-thelatch plate I91 for that column may be latched in its right handposition (Fig, 3) by means of manually settable stops 202 of which thereis provided one for each 5 latch plate and which are normally positionedin their inoperative or upper position as shown in full lines in Fig. 3.

The pistons I90, upon being actuated to move downwardly, will be latchedin their downward position by the latch plates I91 for a predeterminedtime in the cycle of the mechanism to control perforating pins 203(Figs. 2 and 3) of which there is provided one for each possible cardhole in a statistical record card having 45 15 columns with 12 possiblecard holes in each column. After the pistons-J90 have controlled theoperation of the perforating pins 203, as described hereinafter, thepistons will all be simultaneously released to permit their associated20 springs I93 to move them to their upper position as shown in Fig. 3due to the movement of all of the latch plates I91 to the right (Fig. 3)

.by a release bar 204 common to all of the latch plates I91 engagingrelease pins 205 fixed to each 25 of the latch plates. The release bar204 is fixed to the ends of a pair of levers 206 pinned to a shaft 201journaled in the side plates 49 and having pinned thereto a lever 208shown in dot and dash lines on Fig. 3 and dotted lines in Fig. 30 1. Thelever 208 carries at its lower end (Fig. 1)

a cam roller 209 which rides in a cam groove 2I0 in a cam 2II fixed tothe shaft I3 so that once in each revolution of the shaft I3 the shaft201 will be oscillated to move all of the latch plates 35 I91 (Fig. 3)to the right to release their associated pistons I90.

The perforating pins 203 are each provided with a head 22I, the loweredges of which rest upon a guide plate 222 for normally supporting 4'the perforating pins 203 in the position shown in Figs. 2 and 3, theguide plate 222 being provided with a plurality of apertures 223 inwhich the perforating pins 203 are slidable and being supported betweenthe side plates 49.

A guide plate and die unit indicated generally by the numeral 224 isreciprocably mounted in the side plates 49 at 225 and comprises upperand lower guide plates 226 and 221, respectively, and a die plate 228.The guide plates 226 and 221 and 50 the die plate 228 are each providedwith apertures in direct vertical alignment with the apertures in theguide plate 222 in which the perforating pins 203 may move and the guideplate 221 and die plate 228 are spaced apart sufliciently to per- 55 mitthe passage of a statistical record card therebetween, suitable slotsbeing cut in all of the plates to receive the card feed rollers 00 and63.

A card which has been advanced under the perforating pins 203 will bestopped thereunder 60 simultaneously with the stopping of the cardmoving under the pneumatic head I39 by a card stop 229 formed integrallywith downwardly extending portions 230 of the card stop bracket I56. Theguide plate and die unit 224 has a pair 65 of actuating levers 23Isecured thereto, the lower ends of which carry cam rollers 232 whichextend into a cam groove 233 formed in a cam 234 mounted on the shaft I3(Fig. 2). Each time the shaft I3 passes through one complete revolu- 70tion the guide plate and die unit 224 will be moved upwardly and-a cardpositioned therein will raise "all'of the perforating pins 203 with it,except blast of air being directed at the upper surface thereof, andthus pistons which are depressed will cause the perforating pinsassociated therewith to perforate the record card positioned in theguide plate and die unit 224.

The invention has been described as a machine for perforatingstatistical record cards having 45 columns of possible card holes, andin such a device there will of necessity be provided 45 columns ofperforating pins with 12 pins in each column, and a corresponding numberof pistons I99. The invention contemplates a perforating mechanism,which may be used as a duplicating machine and which is provided withmechanim for manually controlling the perforation of predeterminedcolumns on the record cards which will form the duplicate record whetheror not corresponding columns of the card being duplicated hasinformation perforated therein. In order to accomplish this, there hasbeen provided a keyboard 249 (Figs. 1, 8, 9 and 10) having 10 columns ofkeys 241 with 12 keys in each column for controlling the perforationsinscribed in duplicate cards in the 31st and th columns thereof. Thekeyboard 246 (Fig. 1) is mounted upon brackets 248 secured to the base59 and comprises as shown in Figs. 8, 9 and 10, a valve block 249 inwhich the keys 241 are slidably mounted. The valve block 249 is providedwith a. passageway 259 extending transversely of the 10 columns of keysand connected by a pipe 25! to the pipe I62 running to the valve I99.Communicating with the passageway 259 are a series of passageways 252extending longitudinally of the columns of the keys provided with ports253 adjacent each key 241, thereby to direct air under pressure from asource (not shown) through the valve I69 to each key 241 on the keyboardwhenever the valve I59 is opened by the camming pin I58. -Each of thekeys 241 comprises a valve portion 254 slidably positioned in anaperture 259 and having a port 255 formed therein communi-- eating witha vertically extending passage 259 which, upon depression of the key,will interconnect the main supply of air under pressure to a pipe 251individual to each of the keys. The valve portion 254 of the keys isnormally urged upwardly into engagement with a stop plate 259, of whichthere is provided one for each column of keys, by a coil spring 259engaging the lower surface of the valve portion 254 and a shoulder 26Iformed in the aperture 258. The plates 259 are normally urged to theright (Figs. 8 and 9) by compression springs 252 mounted in the valveblocks and engaging a depending portion 253 of the plates 259,'retainingscrews 254 threadedly engaging the valve block 249 being provided forextending through slots 295 formed in the plates 259 so that the plateswill be freely slidable upon the upper surface of the blocks 249.Interconnecting the buttons of the keys 241 and the valve portion 254 isa shank portion 216 which slides in an aperture 219 in the plate 259 andwhich has an enlarged portion 211 formed thereon for camming the plate249 to the left (Fig. 9) upon depression of a. key, releasing any otherkey which may have been depressed in that column and thereafter engagingthe under surface of the plate 259 to lock the last key actuated in aparticular column in its downward position. Any key locked in itsdownward position will interconnect its port 255 with the associatedport 253 for supplying air through the pipe 251 associated therewith tothe pipe I9l associated with the particular key actuated.

In the event that there are no perforations in a record card to beduplicated in the particular rows corresponding to the rows in aduplicate record in which it is desired to perforate information undermanual control, the depression of a key on the keyboard 245 prior to thefeeding of cards under the pneumatic head I39 will cause a perforationto be made in the duplicate card in a position corresponding to the keyactuated. However, if the cards being duplicated have informationtherein in the rows where it is desired to have a manual control on theduplicate card, it is necessary to render ineffective the automaticcontrol of the pistons I99, and therefore there is provided in the valveblock I81, the slide valve I92, whereby the control of the perforationsin the duplicate card in the 31st to 49th columns thereof, may beeffected by the keys 241.

Mechanism has been provided as shown in Figs. 2, 3, 4, 5 and 7, forstopping the feeding of cards to the perforating mechanism and thepneumatic head whenever the supply of cards in either of the magazines6| or III has been exhausted. This mechanism comprises a pair of cardengaging levers 399 and 39I which are carried by the card stops 229 andI56, respectively, which move,downwardly to stop a card simultaneously.As shown in Figs. 3 and 7, the card engaging levers 399 and SM have aninverted U- shaped formation at their upper ends, the left arms of which(Figs. 3 and 7) are adapted to .move into apertures 392 and 393,respectively,

when there is no card in the perforating mechan'sm orunder the pneumatichead I39. The card engaging levers 399 and 39I are normally urgeddownwardly by coil springs 394 and 395 positioned therearound andengaging shoulders 399 and 391, respectively, formed on the cardengaging levers and also engaging the under surface of a bracket 398formed on the downwardly extending portion 239 of the card stop bracketI59, pins 399 and 3I9 being passed through the card engaging levers 399and 3M, respectively, to engage the brackets 399 and I55, respectively,to prevent the springs 394 and 395 from moving the levers 399 and 39Idownwardly beyond a predetermined point. The lower ends of the cardengaging levers 399 and 39I are in direct vertical alignment with thelatch member I46 and in the event that there is no card under thepneumatic head I39, the card stop bracket I55, in moving downwardly,will cause the end of the card engaging lever to engage the end of thelatch member I to rock it (Figs. 2 and 7) in a clockwise direction torelease the lever I32, thereby permitting the spring I3I to move thedriving clutch member I 25 out of engagement with the driven clutchmember I24, to stop the rotation of the shaft I3. In a similar manner ifthere is no card present in the perforating mechanism, the lever 399will move downwardly into its associated aperture 392 and actuate thelatch member I45 to stop all of the mechanism except the card feedrollers which are continuously rotated. However, if there are cardsunder the pneumatic head I39 and in the perforating mechanism, neitherof the card engaginglevers 399 or SM will be moved downwardly intoengagement with the latch member I49 and the machine will continue towithdraw cards from the magazines BI and 9| until the supply of cards ineither one or the other of the magazines is exhausted, or, until theBowdin wire I5I is actuated manually to stop the machine.

A better understanding of the mechanism'will be had from the followingbrief description of the operation thereof.

Let it be assumed that it is desired to perforate in a group ofstatistical record cards a duplicate of the information in certain rowsof a series of other cards and in addition it is desired to perforate inthe new group of cards certain constant information which is common to aplurality of cards. The embodiment of the invention disclosed herein isof a type in which the 31st to 40th columns of the duplicate cards mayhave information perforated therein not found in the cards beingduplicated, and therefore let it be assumed that it is desired toperforate in the group of cards being prepared the numerals 2, 3 and 8,in the 31st, 33rd and 35th columns of the cards. This may beaccomplished regardless of whether the cards being duplicated haveinformation perforated in the 31st, 33rd and 35th rows or not. A supplyof blank record cards should be deposited in the magazine 6I and thesupply of cards which it is desired toduplicate should be placed in themagazine 9I. The slide valves I92 associated with the 31st, 33rd and35th columns of the record card should then be moved to their extremeright hand position (Fig. 3) so that in the event that there isinformation in the cards to be duplicated which it is not desired tohave perforated in the duplicate cards, the 31st, 33rd and 35th columnsof the cards to be duplicated will not control the pistons associatedwith those columns. Before the machine is started to perform theduplicating operations, the keys 241 associated with the numbers 2, 3and 8 in the columns of keys associated with the 31st, 33rd and 35thcolumns of the record cards should be depressed to a position where thestop plates 259 associated'therewith will lock the keys in theirdownward position to interconnect their ports 255 with the ports 253communicating with the passages 252 and 25I.

After the information which is common to a plurality of duplicate .cardsand which is not perforated in the cards being duplicated has been setup on the keys 241, the Bowdin wire I33 may be actuated to move thelever I32 to the right (Fig. '1) to a position where it will be latchedby the latch member I46, thereby to permit the driving clutch member I25to beheld in engagement with the driven-clutch member I24 for rotatingthe shaft I3. Early in the cycle of rotation of the shaft I3 the camlever II9 will be moved to the left (Fig. 1) and shortly thereaftermoved to the right to rock the bifurcated lever H5 and thereby to causethe card picker knives I99 and H9 to feed a card from the bottom of eachof the magazines 6| and 9| into engagement with their associated cardfeed rollers which will advance the cards into the perforating mechanismand under the pneumatic head I39, respectively. The cards fromthesupplies I36 and I35 upon reaching a position under the pneumatic headI39 and in the perforating mechanism will be stopped in these positionsdue to the movement of the card stops I51 and 229 downwardly into thepath of the cards, the card stops both being interconnected with thepneumatic head I39 which at this time in the cycle of rotation of theshaft I3 is driven downwardly to engage the card advanced thereto fromthe supply of cards I36. As soon as the cards are stopped in theperforating mechanism and under the pneumatic head I39, the camming pinI58 will engage the valve lever I59 to open the valve I69 and permit airunder pressure to be directed through the pipe I62 and I63 into thepneumatic head I39 and through the apertures in the card held under thepneumatic head I39 to actuate the pistons I99 associated with the cardpositions in which perfora- 5 tions occur to drive the pistonsdownwardly and cam the latch plate I91 to the right against the tensionof the springs I99. The pistons I99 will be locked in their downwardposition by their associated plates I91 engaging the notches I96 10formed in the pistons in all of the rows where the slide valves I92 havenot been operated, and in the rows where the slide valves I92 have beenoperated the pistons will not be affected unless a key or keys' 241 onthe keyboard 246 associated 15 with those particular rows have beendepressed. In the problem selected for illustration, the slide valvesI92 have been moved to their right hand position (Fig. 3) to renderineffective for control by the card being duplicated those pistons 20associated with the 31st, 33rd and 35th columns of the, record card. Thekeys representing the digits 2, 3 and 8 in the 31st, 33rd and 35thcolumns of the record card have been depressed and when the valve I69 isopened, air under 25 pressure will be directed through the Pipe 25I andpassages 259 and 252 through the ports 253 and 255 associated with theactuated keys representing the digits 2, 3 and 8 in the 31st, 33rd and35th columns of the card and through the pipes 30 251 to the pipes I9I,thereby to actuate the pistons representing the digits 2, 3 and 8associated with the 31st, 33rd and 35th columns of the record cards.These pistons will also be locked in their downward position by theirassociated 35 latch plates I91, simultaneously with the locking of thepistons associated with the other columns of the card being duplicated.

After the pistons I99 have been locked in their downward position, thecamming pin I59 will 40 move the reciprocable lever I69 to the left(Fig. 1) to close the valve I69 and immediately thereafter the cams 234will raise the die plate 228 and guide plates 226 and'221 upwardly. Acard positioned between the die plate 228 and guide 45 plate 221 willmove all of the perforating pins 293 upwardly except those pins whichengage the lower ends of the pistons I99 which have ,been locked intheir downward position. Those perforating pins 293 which are restrainedagainst upward movement with the die plate by the pistons I90, will bedriven through the card held upon the die plate and will perforate thecard in the position representing the digits 2, 3 and 8 in the 31st,33rd and 35th columns, respectively, and will also perforate the cardwith all of the information in the card withdrawn from the supply ofcards I36 except any information which occurred in the 31st, 33rd and35th columns thereof. (it

After the record card has been perforated in this manner, the cams 234will move the guide plate and die unit 224 downwardly to withdraw theperforating pins 293 from the card and thereupon the pneumatic head I39will be cammed upwardly by its cams I44 and the cards under the head I39and between the guide plate 221 and die plate 228 will be released bytheir respective card stops I51 and 229 whereupon the card beingduplicated and the duplicate cards will be di- 7 withdrawn from thesupply I36, and in accordance with the information set up by theoperation of the keys 241. The shaft l3 willcontinue to rotate until themachine is stopped due to the operation of the "Bowdin" wire |5| oruntil the supply of cards in either of the magazines 6| or 9| isexhausted and one of the card engaging levers 300 or 3M actuates thelatch member I46 to automatically stop the machine.

Although a specific embodiment of the invention has been describedhereinbefore, it is to be understood that the structure described iscapable of many modifications and alterations without departing from thescope of the invention which is to be limited only by the scope of theappended claims.

What is claimed is:

1. A perforating apparatus comprising means for directing air pressurethrough apertures representing information in a record member to takeinformation from the record member, means responsive to the air directedthrough the record member to perforate a duplicate of said informationin a second record member, means for rendering the air under pressuredirected through the apertures ineffective to control certain of theperforating means, and manually controlled means for controlling certainof the perforating means.

2. In a pneumatic card duplicating mechanism, a plurality of perforatingmembers, a plurality of pistons controllable by perforations in a recordmember for controlling the operation of said perforating members, meansfor rendering certain of said pistons irresponsive to perforations insaid record member, and manually operable means for controlling saidlast mentioned pistons.

3. In a perforating mechanism, a plurality of perforators, a pluralityof pistons for controlling the operation of said perforators, means fordirecting air under pressure through a record member to control selectedones of said pistons, and manually operable means for selectivelycontrolling others of said pistons.

4. In a perforating apparatus, a source of air under pressure, pistonsactuatable by said air under pressure, manually operable means, meansfor selectively directing the air pressure through apertures in a recordcard or through said manually operable means to said pistons, andperforators controlled by said pistons.

5. In a perforating apparatus, pneumatically controlled perforators,manually operable valves, a source of air under pressure, and means forselectively directing the air under pressure through said valves orthrough apertures in a record sheet to control the operation of saidperforators.

6. In an apparatus for duplicating a perforated record sheet,pneumatically controlled means for determining the location ofperforations in the perforated record sheets, means controlled therebyfor registering the location of the perforations in the perforatedrecord sheet, a plurality of perforating members, means for actuatingthe perforating members to cause the registering means to selectivelycontrol the efiect of the perforating members on a second record member,and a plurality of manually actuatable valves for 5 nullifying theoperation of selected ones of the pneumatically controlled means andcontrolling the registering means.

7. In an apparatus for duplicating a perforated record sheet,pneumatically controlled means for 10 determining the location ofperforations in the perforated record sheets, means controlled therebyfor registering the location of the perforations in the perforatedrecord sheet, a plurality of perforating members, means for actuatingthe per- 15 forating members to cause the registering means toselectively control the effect of the perforating memberson a secondrecord member, means for rendering said pneumatically controlled meansineffective for determining the location of per- 20 forations in certainareas of the perforated record sheets, and a plurality of manuallyactuatable valves for controlling the registering means associated withthose areas of the record sheet in which the determination of thelocation of per- 25 forations by the pneumatically controlled means isrendered ineffective.

8. In a record marking apparatus, pneumatically controlled markingmembers, manually operable keys, and means for effecting the control 0of the 'marking members either in response to apertures in a recordsheet or by said keys in-. cluding means for rendering the sheetineffective to control the marking members responsive to the keys.

9. In a perforating apparatus, means for directing air under pressurethrough apertures representing information in a record member, means formarking'information on a second record member, means controlled by airunder pres- 40 sure passing through the first mentioned record memberfor controlling some of the marking means, manually controlled means forcontrolling others of the marking means, and means for selectivelyrendering either the manually controlled means or the air passing,through the record member effective to control predetermined markingmeans.

10. In a perforating apparatus, means for marking a card, a source ofair under pressure, means controlled by said air under pressure forcontrolling said marking means, means for mounting a perforated card ina position for controlling the passage of air to said pressurecontrolled means, and manually controlled means for controlling thepassage of air to said pressure controlled means.

11. In a perforating apparatus, a source of air under pressure, pistonsactuatable by said air under pressure, and means for selectivelydirecting the air under pressure through apertures in a record orthrough manually operated means to said pistons.

JOHN C. GATES.

